Stop Spell check in taxonomy field

I have taxonomy controls on my page-layout which I want to stop spell check at the time of check in page.

The issue I'm facing is that I have 2 taxonomy field on page which behaves differently. In one taxonomy the spell check in not working and in another one spell checking is working.

when I check in the page there is message in pop up that

1 spelling error(s) found

This error is because of one taxonomy only. If I will remove that field than it will not give spell error.